<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>登录</title>
</head>
<body>
  <form action="/login" method="post">
    用户名：<input type="text" name="userName" placeholder="用户名">
    密码：<input type="password" name="userPassword" placeholder="密码">
    <button type="submit" value="登录">登录</button>
  </form>
</body>
</html>